Rendering: scaling of dashes and label background
Rendering: applying text/stroke scaling consistenly in the XXXBuilder, not through RenderThemeBuilder
AndroidUtils: fix NPE when external cache is full
DisplayModel: add capability to clamp tile size to multiples of fixed value
Experimental SVG textures: use of SVGs as textures scaled up to the tile size multiple.
Hack-Alert: SVG files in the patterns folder are scaled up, there is not yet any proper support
to set the size of SVG files otherwise (requires rendertheme change).
Merge branch 'rescue' into rescue-exp
Code Quality: fixed Sonar violations mostly in Android code, should have no impact on functionality (merge from rescue)

Conflicts:
	mapsforge-map-android/src/main/java/org/mapsforge/map/android/graphics/AndroidSvgBitmap.java
Merge branch 'rescue' into rescue-exp
Merge branch 'rescue' into rescue-exp
Merge branch 'rescue' into rescue-exp
Rendertheme: changed xsd to officially contain assets alongside jar and file as source for bitmaps
Code quality: More changes to make tools happier, no change to functionality.
Code Quality: made some changes to mapsforge-map-android that make tools happier, even if the change nothing.
MyLocationOverlay: fix for missing DisplayModel, also updated Samples app.
Note: MyLocationOverlay does not use a good model for receiving/managing location
updates.
Merge branch 'rescue' into rescue-exp
Merge branch 'rescue' into rescue-exp
Merge branch 'rescue' into rescue-exp

Conflicts:
	Applications/Android/Samples/src/main/java/org/mapsforge/applications/android/samples/Samples.java
	mapsforge-core/src/main/java/org/mapsforge/core/graphics/GraphicFactory.java
	mapsforge-map-android/src/main/java/org/mapsforge/map/android/graphics/AndroidSvgBitmap.java
	mapsforge-map/src/main/java/org/mapsforge/map/model/DisplayModel.java
	mapsforge-map/src/main/java/org/mapsforge/map/rendertheme/XmlUtils.java
SVG: removed some unneeded metadata from files
Rendertheme V4: added scaling options for SVG files
Rendertheme V4: dy offset for ways (first cut)